The campaign, led by the Progressive Change Campaign Committee,
will target Sens. Sens. Mark Pryor of Arkansas, Max
Baucus of Montana, Mark Begich of Alaska, and Heidi
Heitkamp of North Dakota.

The group released an ad Friday signed by 75 self-described
gun owners that focused on Baucus. It will appear in seven
Montana newspapers — the Billings Gazette, Butte
Montana Standard, Helena Independent Record, Missoulian, Bozeman
Chronicle, Kalispell Daily Interlake, and Hamilton Ravalli
Republic.

"Senator Baucus, it was WRONG to vote 'no' on stopping gun
violence," the ad reads. "79 percent of Montana voters support
background checks. Stand with us, not gun manufactures. Support
sensible gun laws and keep our families and communities
safe."

The group did not say when it plans to release the other
ads.

This seems like a low-scale start to what has the potential
to become something bigger as the 2014 mid-term elections
approach. It remains to be seen if the PCCC or other, larger
Democratic groups will threaten the three Democrats up for
re-election — Baucus, Begich, and Pryor — by attempting to launch
primary challenges.